* {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
    background-color: #f5f5f5;
}

.container {
    width: 320px;
    padding: 16px;
    margin: 0 auto;
}

#scoreForm {
    padding: 8px 0;
}

label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    color: #333;
}

.form-group {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
}

input[type="number"] {
    flex: 1;
    padding: 8px 12px;
    font-size: 14px;
    border: 1px solid #ddd;
    border-radius: 4px;
}

input[type="number"]:focus {
    outline: none;
    border-color: #4CAF50;
}

button {
    padding: 8px 16px;
    font-size: 14px;
    cursor: pointer;
    border: none;
    border-radius: 4px;
    transition: background-color 0.2s;
}

button[type="submit"] {
    background-color: #2196F3;
    color: white;
}

button[type="submit"]:hover {
    background-color: #1976D2;
}

#resultCanvas {
    width: 100%;
    border-radius: 4px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.download-btn {
    width: 100%;
    margin-top: 12px;
    padding: 12px;
    background-color: #4CAF50;
    color: white;
    font-weight: bold;
}

.download-btn:hover {
    background-color: #45a049;
}